{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:4I6LHT3RSKBO4KVOOXG6NVPBXE","short_pith_number":"pith:4I6LHT3R","canonical_record":{"source":{"id":"1509.04066","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-09-14T12:49:45Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"d865b4981c3a43375f69a7682a683790082dc67e59c1f679b67604a4c2726aa9","abstract_canon_sha256":"3d9a38f65fb578a980337c805b798476d4aee7935e7dcbdf079158522da08b82"},"schema_version":"1.0"},"canonical_sha256":"e23cb3cf719282ee2aae75cde6d5e1b9038725660d6592bfd093b9d57d08a67d","source":{"kind":"arxiv","id":"1509.04066","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.04066","created_at":"2026-05-18T01:19:40Z"},{"alias_kind":"arxiv_version","alias_value":"1509.04066v2","created_at":"2026-05-18T01:19:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.04066","created_at":"2026-05-18T01:19:40Z"},{"alias_kind":"pith_short_12","alias_value":"4I6LHT3RSKBO","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_16","alias_value":"4I6LHT3RSKBO4KVO","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_8","alias_value":"4I6LHT3R","created_at":"2026-05-18T12:29:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:4I6LHT3RSKBO4KVOOXG6NVPBXE","target":"record","payload":{"canonical_record":{"source":{"id":"1509.04066","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-09-14T12:49:45Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"d865b4981c3a43375f69a7682a683790082dc67e59c1f679b67604a4c2726aa9","abstract_canon_sha256":"3d9a38f65fb578a980337c805b798476d4aee7935e7dcbdf079158522da08b82"},"schema_version":"1.0"},"canonical_sha256":"e23cb3cf719282ee2aae75cde6d5e1b9038725660d6592bfd093b9d57d08a67d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:19:40.661044Z","signature_b64":"pXARokO6PngATAlPJ4snC1MriXBsroRhQnUy1l83JyZUOepNrAyisoU/qFGUqJeS9iWdZ5tIE7/wMUr1YXzwBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e23cb3cf719282ee2aae75cde6d5e1b9038725660d6592bfd093b9d57d08a67d","last_reissued_at":"2026-05-18T01:19:40.660403Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:19:40.660403Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1509.04066","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:19:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5nIOt+mIAfKkBxgc4LGGxHUrYqScp2LJElRmKBpbZFt5eNINp6h7X7UODJuW3knBaY3hhgIgv/vvQZFmxqIrAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T22:30:28.945483Z"},"content_sha256":"d9eb3221b2078a15ef160a4a7ab84156d5a65a442514abaa5e704afdaecf55b9","schema_version":"1.0","event_id":"sha256:d9eb3221b2078a15ef160a4a7ab84156d5a65a442514abaa5e704afdaecf55b9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:4I6LHT3RSKBO4KVOOXG6NVPBXE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Improving gravitational-wave parameter estimation using Gaussian process regression","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"gr-qc","authors_text":"Alvin J. K. Chua, Christopher J. Moore, Christopher P. L. Berry, Jonathan R. Gair","submitted_at":"2015-09-14T12:49:45Z","abstract_excerpt":"Folding uncertainty in theoretical models into Bayesian parameter estimation is necessary in order to make reliable inferences. A general means of achieving this is by marginalizing over model uncertainty using a prior distribution constructed using Gaussian process regression (GPR). As an example, we apply this technique to the measurement of chirp mass using (simulated) gravitational-wave signals from binary black holes that could be observed using advanced-era gravitational-wave detectors. Unless properly accounted for, uncertainty in the gravitational-wave templates could be the dominant s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.04066","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:19:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ly1qvKRz7fYr0yDMLHPlTh77Rs5I9W3eZH/Af7Guz437h8/ZDBIgOMOZNca8Jk+PtXhkJsNJ6PH+S3Fyau6lBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T22:30:28.946209Z"},"content_sha256":"654efcb23d5d81d420e99560eb5896801c8cdf6ee1617dd71b5aabc3352da34a","schema_version":"1.0","event_id":"sha256:654efcb23d5d81d420e99560eb5896801c8cdf6ee1617dd71b5aabc3352da34a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4I6LHT3RSKBO4KVOOXG6NVPBXE/bundle.json","state_url":"https://pith.science/pith/4I6LHT3RSKBO4KVOOXG6NVPBXE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4I6LHT3RSKBO4KVOOXG6NVPBXE/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-29T22:30:28Z","links":{"resolver":"https://pith.science/pith/4I6LHT3RSKBO4KVOOXG6NVPBXE","bundle":"https://pith.science/pith/4I6LHT3RSKBO4KVOOXG6NVPBXE/bundle.json","state":"https://pith.science/pith/4I6LHT3RSKBO4KVOOXG6NVPBXE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4I6LHT3RSKBO4KVOOXG6NVPBXE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:4I6LHT3RSKBO4KVOOXG6NVPBXE","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"3d9a38f65fb578a980337c805b798476d4aee7935e7dcbdf079158522da08b82","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-09-14T12:49:45Z","title_canon_sha256":"d865b4981c3a43375f69a7682a683790082dc67e59c1f679b67604a4c2726aa9"},"schema_version":"1.0","source":{"id":"1509.04066","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.04066","created_at":"2026-05-18T01:19:40Z"},{"alias_kind":"arxiv_version","alias_value":"1509.04066v2","created_at":"2026-05-18T01:19:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.04066","created_at":"2026-05-18T01:19:40Z"},{"alias_kind":"pith_short_12","alias_value":"4I6LHT3RSKBO","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_16","alias_value":"4I6LHT3RSKBO4KVO","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_8","alias_value":"4I6LHT3R","created_at":"2026-05-18T12:29:05Z"}],"graph_snapshots":[{"event_id":"sha256:654efcb23d5d81d420e99560eb5896801c8cdf6ee1617dd71b5aabc3352da34a","target":"graph","created_at":"2026-05-18T01:19:40Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Folding uncertainty in theoretical models into Bayesian parameter estimation is necessary in order to make reliable inferences. A general means of achieving this is by marginalizing over model uncertainty using a prior distribution constructed using Gaussian process regression (GPR). As an example, we apply this technique to the measurement of chirp mass using (simulated) gravitational-wave signals from binary black holes that could be observed using advanced-era gravitational-wave detectors. Unless properly accounted for, uncertainty in the gravitational-wave templates could be the dominant s","authors_text":"Alvin J. K. Chua, Christopher J. Moore, Christopher P. L. Berry, Jonathan R. Gair","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-09-14T12:49:45Z","title":"Improving gravitational-wave parameter estimation using Gaussian process regression"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.04066","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:d9eb3221b2078a15ef160a4a7ab84156d5a65a442514abaa5e704afdaecf55b9","target":"record","created_at":"2026-05-18T01:19:40Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"3d9a38f65fb578a980337c805b798476d4aee7935e7dcbdf079158522da08b82","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-09-14T12:49:45Z","title_canon_sha256":"d865b4981c3a43375f69a7682a683790082dc67e59c1f679b67604a4c2726aa9"},"schema_version":"1.0","source":{"id":"1509.04066","kind":"arxiv","version":2}},"canonical_sha256":"e23cb3cf719282ee2aae75cde6d5e1b9038725660d6592bfd093b9d57d08a67d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e23cb3cf719282ee2aae75cde6d5e1b9038725660d6592bfd093b9d57d08a67d","first_computed_at":"2026-05-18T01:19:40.660403Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:19:40.660403Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pXARokO6PngATAlPJ4snC1MriXBsroRhQnUy1l83JyZUOepNrAyisoU/qFGUqJeS9iWdZ5tIE7/wMUr1YXzwBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:19:40.661044Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.04066","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d9eb3221b2078a15ef160a4a7ab84156d5a65a442514abaa5e704afdaecf55b9","sha256:654efcb23d5d81d420e99560eb5896801c8cdf6ee1617dd71b5aabc3352da34a"],"state_sha256":"54a6c82f8466b052f0c24b8dc7875d49e287690c15e576a2ab6e93c86d2d30c9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1nWc01ltYSilWFva0rtFsFVVuqYYz/8jP3X7j7URoUyM5kSzGHevVNNH4y5dLsI8NizIAPr3Jotjj5PZ+oDAAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T22:30:28.949926Z","bundle_sha256":"d9f6fbf5d63a19227a50a023092576d797c73087ee0b2dc86b9c5aed7f906d94"}}